(!!!!) (Best Pair) 0A3 GE NOS 1956-1961 (neon)
(!!!) (BEST PAIR) JHY-0B2WA CBS NOS 1960 (neon gas) (1 pair)
(!!) (BEST PAIR 1950's) 0C3 CBS NOS 1955 (argon)
(!!) (Best Pair) 0D3 RCA NOS 1964-1965 (argon)
(!!) (Best Pair) JTL-5651 Tungsol NOS 1962 (1 pair)
(!!) (Recommended Pair) 0B2 Haltron France like new 1961 (argon gas)
(!!) (Recommended Pair) 0B3 Sylvania NOS 1956 same build
(!!) (Recommended Pair) 0C3 GE NOS 1946 (argon)
(!!) (Recommended Pair) 5651WA Sylvania JAN 1980-1982 Diode Voltage Reference (1 pair)
(!!) 0C3 Sylvania branded GE NOS 1972-1976 (1 Pair)
(!!) 180C1=0B2 Mullard England NOS (neon)
(!!) GB-0A2WA Sylvania Gold Brand low hours/like new 1970 era
(!) (1 PAIR) 0C3 GE branded 0C3A NOS 1976 (argon)
(!) (Best Pair 1950's) 5651 RCA NOS 1950's (1 pair)
(!) (BEST PAIR) 0C3 RCA NOS - 1 tube branded GE 1959 and 1962 (1 pair) (argon)
(!) (Best Pair) 0D3W Chatham by Tungsol NOS 1951-1953 (high stability 0D3) (argon)
(!) (BEST PAIR) JAN-5651WA Raytheon NOS 1968 (1 pair)
(!) (BEST PAIR) JAN-5651WA Raytheon NOS 1970 (1 pair)
(!) (BEST PRICE) 0B2 RCA used/good 1960's - 1970's (4 tubes for $9.99)